搜元素提供国外优质的免版权矢量素材资源免费下载,该资源的中文名称是:call off contract or blanket order is a purchase order which enables bulk orders over a period of time,英文名称是:call off contract or blanket order is a purchase order which enables bulk orders over a period of time,该资源由网友上传,提供高速下载。